citizen kane
Member
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I want to joint two shafts together, both shafts are in the order of 1" diameter. Both existing shafts are of a two piece welded construction.
I've had the materials checked, both appear to be fairly standard low alloy steel although one has a tungsten content of around 0.7%.
The intention is to spigot one shaft into another and then tig weld. I will also provide a secure mechanical coupling, probably a couple of taper pins or a simple spline.
Neither shaft is hard and the the discoloration around the existing welds are still visible, does this suggest that no further heat treatment has been performed ?
I'm not worried about the absolute strength but I am mindful of possible long term low cycle fatigue and would like to select a suitable filler that would minimise this.
Any suggestions?
I've had the materials checked, both appear to be fairly standard low alloy steel although one has a tungsten content of around 0.7%.
The intention is to spigot one shaft into another and then tig weld. I will also provide a secure mechanical coupling, probably a couple of taper pins or a simple spline.
Neither shaft is hard and the the discoloration around the existing welds are still visible, does this suggest that no further heat treatment has been performed ?
I'm not worried about the absolute strength but I am mindful of possible long term low cycle fatigue and would like to select a suitable filler that would minimise this.
Any suggestions?